const { preBind, postBind } = require('../../lib/utils/relate');
const { LOG_TYPE } = require('../../common/constants');
const { generateWeixinCache, saveWeixinUserKey, getWeixinPlatform } = require('../../lib/utils/weixin');
const { initWeixin } = require('../../lib/third-party/index');
const { ERROR } = require('../../common/error');

/**
 * 绑定微信
 * @tutorial https://uniapp.dcloud.net.cn/uniCloud/uni-id-pages.html#bind-weixin
 * @param {Object} params
 * @param {String} params.code  微信登录返回的code
 * @returns
 */
module.exports = async function (params = {}) {
    const schema = {
        code: 'string',
    };
    this.middleware.validate(params, schema);
    const uid = this.authInfo.uid;
    const { code } = params;
    const weixinPlatform = getWeixinPlatform.call(this);
    const appId = this.getUniversalClientInfo().appId;

    const weixinApi = initWeixin.call(this);
    const clientPlatform = this.clientPlatform;
    const apiName = clientPlatform === 'mp-weixin' ? 'code2Session' : 'getOauthAccessToken';
    let getWeixinAccountResult;
    try {
        getWeixinAccountResult = await weixinApi[apiName](code);
    } catch (error) {
        await this.middleware.uniIdLog({
            success: false,
            type: LOG_TYPE.BIND_WEIXIN,
        });
        throw {
            errCode: ERROR.GET_THIRD_PARTY_ACCOUNT_FAILED,
        };
    }

    const {
        openid,
        unionid,
        // 保存下面四个字段
        sessionKey, // 微信小程序用户sessionKey
        accessToken, // App端微信用户accessToken
        refreshToken, // App端微信用户refreshToken
        expired: accessTokenExpired, // App端微信用户accessToken过期时间
    } = getWeixinAccountResult;

    const bindAccount = {
        wx_openid: {
            [weixinPlatform]: openid,
        },
        wx_unionid: unionid,
    };
    await preBind.call(this, {
        uid,
        bindAccount,
        logType: LOG_TYPE.BIND_WEIXIN,
    });
    await saveWeixinUserKey.call(this, {
        openid,
        sessionKey,
        accessToken,
        refreshToken,
        accessTokenExpired,
    });
    return postBind.call(this, {
        uid,
        bindAccount,
        extraData: {
            wx_openid: {
                [`${weixinPlatform}_${appId}`]: openid,
            },
            ...generateWeixinCache.call(this, {
                openid,
                sessionKey, // 微信小程序用户sessionKey
                accessToken, // App端微信用户accessToken
                refreshToken, // App端微信用户refreshToken
                accessTokenExpired, // App端微信用户accessToken过期时间
            }),
        },
        logType: LOG_TYPE.BIND_WEIXIN,
    });
};
